Essays about: "bias correction method"

Showing result 1 - 5 of 13 essays containing the words bias correction method.

  1. 1. The Role of Uni- and Multivariate Bias Adjustment Methods for Future Hydrological Projections and Subsequent Decision-Making

    University essay from Uppsala universitet/Luft-, vatten- och landskapslära

    Author : Anna Merle Liebenehm-Axmann; [2024]
    Keywords : Bias adjustment methods; future hydrological climate projections; statistical analysis; future streamflow analysis; biasjusteringsmetoder; framtida hydrologiska projektioner; statistisk analys; framtida vattenförings analys;

    Abstract : Climate models are essential for generating future climate projections. However, due to simplifications, the models can produce systematic differences between output and reality, which is referred to as model bias. Bias adjustment methods aim to reduce this error, which is important for making future projections more reliable. READ MORE

  3. 2. Deep Neural Networks for Noise Reduction and Bias Removal in MR Diffusion Signal

    University essay from

    Author : Beqir Berisha; [2022-03-22]
    Keywords : Medical physics; Deep Neural network; Prostate cancer; noise; Diffusion-weighted imaging; Rician bias correction;

    Abstract : The purpose of this study is to assess the potential of deep neural networks, trained by unsupervised learning, for diffusion weighted imaging (DWI) data modeling and denoising. DWI data were modeled by a biexponential model and Rician bias was corrected for. READ MORE

  4. 3. Neural Networks for Material Decomposition in Photon-Counting Spectral CT

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Hugo Charrier; [2022]
    Keywords : PCCT; X-ray; scanner; photon counting; AI; neural networks;

    Abstract : Photon counting computed tomography scanners constitute a major improvement of the field of computed tomography, opening various prospective and enabling the decomposition of computed tomography images into different materials. The material decomposition algorithm, mapping photon counts to material pathlengths, relies on a forward model with Poisson statistics. READ MORE

  5. 4. Ground validation and bias correction of GPM-IMERG V6 satellite precipitation product over Sweden

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Mojtaba Moravej; [2020]
    Keywords : satellite precipitation product; bias correction; GPM-IMERG; Monte Carlo; evaluation; rain; Earth and Environmental Sciences;

    Abstract : This study attempts to assess and correct the performance of Integrated Multi-satellite Retrievals for Global Precipitation Measurement (GPM-IMERG) final run daily precipitation product across Sweden. The performance of GPM-IMERG version 6 final run was evaluated against 677 rain gauges in a period from 12 March 2014 to 31 May 2019. READ MORE

  6. 5. An evaluation of using GPM satellite products to forecast flash floods in mountainous catchments

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Yihan Chen; [2017]
    Keywords : GPM; Han River; Flood; IMERG; Mountain; Technology and Engineering;

    Abstract : NASA's GPM satellite rainfall products IMERG early run and IMERG late run were evaluated for their applicability in flash flood forecasting. The selected catchment was the upper Han River basin, a mountainous catchment with low precipitation in winter and heavy precipitation during summers located in central China. READ MORE